High order methods for acoustic scattering: Coupling farfield expansions ABC with deferred-correction methods

• Published in: Wave Motion
• Main Authors: Villamizar, Vianey, Grundvig, Dane, Rojas, Otilio, Acosta, Sebastian
• Other Authors: Barcelona Supercomputing Center
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2020
• Subjects: Àrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica::Aplicacions informàtiques a la física i l‘enginyeria; High performance computing; Acoustic scattering; High order absorbing boundary conditions; Helmholtz equation; High order numerical methods; Deferred-correction methods; Càlcul intensiu (Informàtica); Helmholtz; Equació de; Brigham; Acosta; Rojas; Orca
• Online Access: http://hdl.handle.net/2117/345928; https://doi.org/10.1016/j.wavemoti.2020.102529

Arbitrary high order numerical methods for time-harmonic acoustic scattering problems originally defined on unbounded domains are constructed. This is done by coupling recently developed high order local absorbing boundary conditions (ABCs) with finite difference methods for the Helmholtz equation....